To search most electronic sources…
For example, you want to find articles with the words "hammer" and "key." This is how you would use AND, OR, NOT:
Hammer AND key -finds articles containing both words
Hammer OR key-finds articles containing one or both words
Hammer NOT key -finds articles containing the first word but not the second.
*Special Trick: If you are searching for a phrase, you can enclose the phrase in quotation marks (Example: "due process of law")